Film magazine



J. BOLSEY FILM MAGAZ INE May 18, 1943 Filed June 27, 1941 2 Sheets-Sheetl wees fimisey J. BOLSEY FILM MAGAZINE May is, 1943 Filed June 27, 19412 Sheets-Sheet 2 INVENTOR" Jae ams Zaisey 7 2;

Patented May is, 1943 Fliilli/i E Eoisey, New York; No

s. ion to provide in gazine and the m adapted to enclo hich is engagedby film mechanism mg the operation oi the camera, when the camera casingis opened.

it is object of invention to combine this light-tight enclosing meanswith the magazine in such a manner that it is operated automaticallywhen the cover of the camera casing is opened closed.

It is still another object of my invention to provide means by which thefilm feeding mechanism is automatically disengaged from the film whenthis film is enclosed within the light-=tight enclosing means, and viceversa, the enclosing means are automatically removed when the filmfeeding mechanism engages the film.

With the above objects in view, my present invention consists mainly ina film magazine comprising a front wall provided with two aper tures forthe film moving between said apertures outside of said magazine along astraight film path and a wall portion between said apertures being at acertain distance from the straight path of the film between saidapertures.

A preferred embodiment of this magazine oomprises a front wall providedwith two parallel slits arranged normal to the side walls of saidmagazine, and a receding front wall portion between said slits.

I propose to combine with this new film magazine one or-moresleeve-shaped tubular members adapted to enclose entirely the filmmoving between the above described parallel slits in the front wall ofthe magazine; it must be noted that these tubular members are movableand can therefore be removed from the film path outside the filmmagazine, thereby releasing this film portion for engagement with thefilm feeding mechanism; if required, they are moved into operativeenclosing position, enclosing entirely the film portion outside of thefilm magazine.

The novel features which I consider as characteristic for my inventionare set forth in particular in the append claims. The invention itself,however, both as to its construction and its method of operation,together with additional obieots and advantages thereof will be bestunderstood from the following description of specific embodiments, whenread in connection with the accompanying drawings, in which:

n ght (Cl. 58 l?) azin without the min reels; Fig. 3 is cross sect meansalong line 1 a s is a perspective vie of an. enclosing tu .bular member;

Figs. 5 and 6 are fragmentary perspective views of the magazine bottomand cover;

Fig. 7 is a plane view a film camera with my new film magazine an; onefilm feeding mechanism, without camera magazine covers;

Fig. 8 is a fragment/ cross-section of the camera shown in 3 1g. '7,along line 8--fi of Fig. 7; and

Fig. 9 is a fragmentary plane View of the camera shown in 7, without thefilm magazine.

As shown in the rawings, the film magazine i is arranged within thecamera casing 22. This magazine l consists of a magazine bottom 3 and amagazine cover 6, sliding one into the other, as usual. The film reels 5are rotatably supported inside of the magazine by shafts b, one of whichis driven by the film driving mechanism of the camera.

In the embodiment of my invention shown in Figs. 1 and 2 the filmmagazine contains only the film reels, while in the embodiment shown inFig. 7 the magazine contains also sprockets 8 driven by the film drivingmechanism and forming loops 9 between them and the film aperture.

In accordance with my present invention, the film magazine comprises afront wall "I provided with two parallel slits H, which are arrangednormal to the side walls oi the magazine; the portion of the front wallbetween these slits ll recedes, forming thereby a free recess l2 betweenthese slits.

The film l0 leaves the film magazine at one or" the slits H, passesalong a straight film path through recess l2 and enters the filmmagazine at the other slit l i.

As shown in Fig. 7, this free film path is neces-: sary for engagementof the film by the film feeding, 1. e., transporting mechanism; thisfilm feed ing mechanism consists of pressure plate l3, aperture plate itand film claw it; intermittently engaging film i8 while it moves betweenthe slits; claw i5 is operated by a mechanism H5. The mode of operationof the pressure and aperture plates and of the film claw will not bedescribed operatlve'pcsition for-engagement by the plates i8 and i i andby the film claw i; it is, however, also evident that when the camera.cover is open the free film portion between the two slits should beprotected from light, i. e., should be light-tightly enclosed.

In order to attain this object, I provide two fiat sleeve-like tubularmembers ii, shown in perspective view in Fig.4. These tubular members.slide between the front wall it of the magazine bottom 3 andsupportingwalls it secured by screws id to side wall l2. as shown in Figs. 3 and5. These supporting walls it are shaped similar Y to the front wall it,i; e., in the embodiment shown in Fig. 1 they have an arcuate shape likethe front wall and the tubular members ll shown in this figure, while inthe embodiment shown in Fig. 7 they are straight like the front wall andthe tubular members shown there. The magazine cover is shaped as shownin Fig. 6, in order a to form a light-tight seal all along recess 52.

The tubular members i? are adapted to slide in longitudinal directionbetween front wall it and supporting walls 58. as indicated by arrow at.In

the position indicated in dotted lines in Figs. 1 and 7, the two frontedges of the tubular sleeve-shaped members engage each other, forming .alighttight tubular enclosure for the film. In the position shown in fulllines, these tubular members are retracted into the camera casing,forming thereby a free film portion between their front edges; this filmportion can be engaged by-the film feeding mechanism as shown in Fig. 7.

Although the shape of these tubular members may be variedto a greatextent within the limits of my-present invention, I have found itadvantageous to shape them as shown in Figs. 3 and 4. A characteristicfeature of this shape is that the film is guided only near its edges 2 iwhile the film portion between the film perforations moves freelybetween anddoes not contact the two side walls 22 of the tubular member.Thus, scratching of the film portion destined for the pictures isavoided and satisfactory guiding of the film near the aperture plateguaranteed. As furthermore shown in Fig. l, the front end of one tubularmemii is wider than the front end of the other membar, so that one ofthem partly slides over the other forming an'absolutely light-tightconnection between them.

Each of the tubular members is provided at its front end with pins it;these pins enable movin of the member by hand, if required, and itsautomatic operation by the means described below in detail. a

As mentioned above, it is important that the film feeding mechanism bedisengaged when the tubular members ll are moved toward each'other. Inorder to enable this, I propose to provide operating means adapted tobring the pressure and the aperture plates and the film feeding clawinto when the sleeve-shaped tubular protecting members it are retractedinto the film magazine and, vice verse, to disengage the pressure andaperture plates and the film claw when the members ii are moved towardeach other, enclosing thereby the free film portion, I may, however,provide also springs for moving each of theparts of the film 'feedingmechanism and members ill automatically into one direction instead ofmoving each or them by hand from oper- Thus, for instance, I may arrangeas shown in Fig. 7, springs 23 tending to press aperture plate i l andpressure plate it against the free film portion between slits H, and aspring 2% pressing film claw it against the film, as customary; theaction of these springs 23 is complemented by the I action of springs 25tending to push the tubular members i'i out of the film magazine intotheir operative position, indicated in dotted lines.

It is evident that without any additional operating means these springswould work against each other, i. e., the pressure and aperture platesid, id, and the film claw 55, would tend to engage the filmsimultaneously with the closing of a the tubular members ll. Therefore,I provide handoperated means adapted to hold the pressure and apertureplates id, id and film claw id in inoperative position when the tubularmembersll are allowed to move toward each other and to hold thesetubular members within the film magazine when the pressure and apertureplates and the film claw are released into operative position.

These operating means may comprise a disk 26 provided with slots Z'l,cooperating with pins 28 bers ll. Disk 26 is turnably iournalled toparti-' ti-on plate 2i" as shown in Fig. 8. This partition pl te isprovided with slits 2a in direction of the movements which pins'28 areadapted to carry out during the movement of the respective members towhich they are secured; the movement of each of these pins is a limitedone due to the fact that each of the members to which they are fastenedmoves in one direction forwardinto operative, and back into inoperativeposition.

When disc 26 is in the position shown in Fig.

9, the tubular members ii are pushed back into the position shown inFig. 7, while pressure and aperture plates 53, M, and film claw i5engage the film. When disk 28 is turned in the direction indicated byarrow 2?, the pins operating the tubular members, and thus these membersthemselves, are allowed to slide by action or springs 25 toward eachother, thereby entirely enclosing the film, while the pins operating thefilm feeding mechanism are moved against the action of springs 23 and24, away from the film path, thereby disengaging the pressure andaperlifilg: plates l3, l4 and the film claw 55 from. the

In order to rotate disk 28 in direction of arrow 2!, and back, I provideat least a portion of the periphery of disk 26 with teeth 28' meshingwith pinion 29'; pinion 29 is fixed to shaft so. carrying also thecamera cover closing member at; a further pinion 32 meshing with toothedrack 33 is arranged as'shown in Fig. 9. Toothed rack 33 is provided withknob 35 projecting through a slit 35 of the camera casing.

The mode 01' operation 01 this operating device is the following: Bypushing knob 84 in direction of arrow 86, disk 28 is moved in directionof arrow 21'. By movement of disk 28 the film feeding mechanism isdisengaged and the sleeveshaped tubular members are closed, as describedabove. Simultaneously, by rotation of gear-2i and shaft to the coverclosing member Si is turned, disengaging a corresponding hook-likemember 31 secured to the camera cover 38, and this cover can be opened.Thus, at the same moment when the camera cover closing means aredisengaged and the cover can be opened and thereby the interior or thecamera can be exposed to light, the 'film is completely light-tightenclosed by the tubular protective member.

When it is desired to take pictures, the camera cover is put into itsplace and knob 34 pushed era magazine and the parts of the film feeding.

mechanism released for engagement with the t will be understood thateach of the elements described above, or two or more together.

may also find a useful application in other types of film camerasdifiering from the types described above.

While I have illustrated and'described the invention as embodied in filmcameras, I do not intend to be limited to the details shown, sincevarious modifications and structural changes may be made withoutdeparting in any way from the spirit of my invention.

Without further analysis, the foregoing will so fully reveal the gist ofmy invention that others can by applying current knowledge readily adaptit for various applications without omitting features that, from thestandpoint of prior art, fairit constitute essential characteristics ofthe generio or specific aspects of this invention, and therefore suchadaptations should and are intended to be comprehended within themeaning and range or equivalency of the following claims.

What I claim as new and desire to secure by Letters Patent is:

l. A film magazine comprising a front wall provided with two aperturesfor the film moving between said apertures outside of said magazinealong a straight film path, a wall portion between said apertures beingat a certain distance from the straight path of the film between saidapertures, and movable sleeve-shaped film guiding means adapted to slidein longitudinal direction oi the iilm moving between said apertures andto dorm a llght=tight enclosing tube between said apertures for the freefilm portion between said apertures, leaving a free space between saidsleeve-shaped film guiding means and said wall portion between saidapertures which is at a certain distance from the straight path of thefilm between said apertures.

2. A film magazine comprising a front wall provided with two parallelslits normal to the side walls of said magazine enabling exit and entryof a film moving betweensald slits, a receding wall portion between saidslits, and a sleeve-shaped film guiding means adapted to slide inlongitudinal direction of the film moving between said slits and to forma light-tight enclosing tube for the tree film portion between saidslits, leaving a free space between said sleeveshaped film guiding meansand said receding wall portion.

8. A film. magazine comprising a front wall provided with two parallelslits normal to the side walls of said magazine enabling exit and entry01' a film moving between said slits, a receding wall portion betweensaid slits, and at least one sleeve-shaped tubular film guiding memberadapted to slide in longitudinal direction of the film moving betweensaid slits and to form a light-tight enclosing tube for the tree filmportion between said slits, leaving a free space between saidsleeve-shaped tubular film'guiding member and said receding wallportion.

4. A film magazine comprising a front wall provided with two parallelslits normal to the side walls of said magazine enabling exit and entryof a film moving between said slits, a receding wall portion betweensaid slits, and at least one sleeve-shaped tubular film guiding memberadapted to slide through said slits into and out of said magazine inlongitudinal direction or the film moving between said slits and toiormthereby a light-tight enclosing tube for the free film portionbetween said slits.

5. A film magazine comprising a front wall provided with two parallelslits normal to the side walls of said magazine enabling exit and entryof a film moving between said slits, a receding wall portion betweensaid slits, and two substantially symmetrical sleeve-shaped tubular filmguiding members adapted to slide through said slits into and out of saidmagazine in longitudinal direction of the film moving between said slitsand to form thereby a light-tight enclosing tube forthe free filmportion between said slits.

6.A film magazine comprising a front wall provided with two parallelslits normal to the side walls of said magazine enabling exit and entry0'1 a film movinglbetween said slits, a receding wall portion betweensaid slits, and at least one sleeve-shaped film guiding member adaptedto slide through said. slits into and out of said magazine in directionof the film moving between said slits and to form thereby a lighttightenclosing tube between said slits, said sleeve shaped film guidingmember provided with at least one pin-shaped projection for moving saidmember.

7. A film magazine comprising a front wall provided with two parallelslits normal to the side walls oi said magazine enabling exit and entryof a film moving between said slits, a receding wall portion betweensaid slits, at least one 'sleeve-shaped film guiding member adapted toslide through said slits into and out of said magazine in direction ofthe film moving between said slits and to form thereby a light-tight onclosing tube between said slits, said sleeve-shaped film guiding memberadapted'to be moved from inoperative position inside of said magazineinto operative position outside of it and spring-like means cooperatingwith said member and constantly tending to move the same from saidinoperative into said operative position.

8. In a film camera in combination a camera casing, a removable filmmagazine comprising a front wall provided with two parallel slits normalto the side walls of said magazine enabling exit and entry or a filmmoving between said slits, a

receding wall portion between said slits, a sleeveshapecl film guidingmeans adapted to slide in longitudinal direction of the film movingbetween said slits and to form a light-tight enclosing tube for the freefilm portion between said slits leaving a free space between saidsleeveshaped film guiding means and said receding wall portion, apressure plate secured to said camera casing arranged behind the filmwithin said free space between said receding wall portion and saidsleeve-shaped film guiding means, an aperture plate arranged in front ofsaid film cooperating with said pressure plate, and an intermittentlymoving film claw engaging said film when it is not enclosed by saidtubular enclosing means.

9. In a film camera in combination a removable film magazine comprisinga front wall provided with two parallel slits normal to the side wallsoi saidmagazine enabling exit and entry of a fllm moving between saidslits, a receding slide through sald slits into and out of said magazinein longitudinal direction of the film moving aperture plates, and said.film claw at will of the operator of the camera.

11. In combination with a film magazine and the film feeding meansclaimed in claim 9, a camera cover, a member for closing and openingsaid camera cover, means cooperating with said camera cover closing andopening member, said means adapted to move simultaneously saidsleeve-shaped film guiding member, said pressure and aperture-plates,and said film claw at will of the operator of the camera in such amanner that the film portion between said slits is lighttightly enclosedat the same time when said wall portion between said slits, and at leastone sleeve-shaped film guiding member adapted to pressure and apertureplates and said claw are moved out of contact with said tree filmportion, and vice versa.

12. In combination with a film magazine'and 5 the film feeding meansclaimed in claim 9, operating' means including a rotatable disk providedwith means adapted to engage said sleeveshaped film guiding member, saidpressure and aperture plates, and said film claw, and to move 10. themsimultaneously in such a manner that the film portion between said slitsis light-tightly enclosed at the same time when said pressure andaperture plates and said claw are moved out of contact with said freefilm portion, and vice versa.

13. In combination with a film magazine and the film feeding meansclaimed in claim 9, a camera cover, a member forclosing and openingsaidcamera cover, means cooperating with said camera cover closing andopening member, said means including a rotatable disk provided withmeans adapted to engage said sleeve-shaped film guiding member, saidpressure and aperture plates, and said film claw, and to move themsimultaneously in such a manner that the film portion between said slitsis light-tightly enclosed at the same timewhen said pressure andaperture plates and said claw are moved out. of'contact with saidfree-film portion, and vice versa.

JACQUES BOLSEY.

